Question 43 Answer and Explanation _ACT June 2022 Form E26 Math Section

Question 43 Answer and Explanation _ACT June 2022 Form E26 Math Section

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43. For i = $\sqrt{-1}$ , (2 + 2i)² = ?

A. -16

B. 0

C. 8i

D. 4 + 2i

E. 4 + 4i

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

Completely square expansion is 4+8i+4(-1)=8i